The 29-year-old forward, on loan from Muangthong United, headed home a cross from Yoshifumi Kashiwa in the 28th minute to help his side beat Consadole Sapporo, who also featured another Thai in their line-up, Chanathip Songkrasin.
That made it another first – the first time two Thais had faced each other in the J-League. Teerail was also voted the Most Valuable Player of the match.